1 |
/*************************************************************************** |
2 |
* * |
3 |
* LinuxSampler - modular, streaming capable sampler * |
4 |
* * |
5 |
* Copyright (C) 2003-2004 by Benno Senoner and Christian Schoenebeck * |
6 |
* Copyright (C) 2005-2007 Christian Schoenebeck * |
7 |
* * |
8 |
* This program is free software; you can redistribute it and/or modify * |
9 |
* it under the terms of the GNU General Public License as published by * |
10 |
* the Free Software Foundation; either version 2 of the License, or * |
11 |
* (at your option) any later version. * |
12 |
* * |
13 |
* This program is distributed in the hope that it will be useful, * |
14 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
15 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
16 |
* GNU General Public License for more details. * |
17 |
* * |
18 |
* You should have received a copy of the GNU General Public License * |
19 |
* along with this program; if not, write to the Free Software * |
20 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, * |
21 |
* MA 02111-1307 USA * |
22 |
***************************************************************************/ |
23 |
|
24 |
#include <getopt.h> |
25 |
#include <signal.h> |
26 |
|
27 |
#include "Sampler.h" |
28 |
#include "engines/EngineFactory.h" |
29 |
#include "plugins/InstrumentEditorFactory.h" |
30 |
#include "drivers/midi/MidiInputDeviceFactory.h" |
31 |
#include "drivers/audio/AudioOutputDeviceFactory.h" |
32 |
#include "engines/gig/Profiler.h" |
33 |
#include "network/lscpserver.h" |
34 |
#include "common/stacktrace.h" |
35 |
#include "common/Features.h" |
36 |
|
37 |
using namespace LinuxSampler; |
38 |
|
39 |
Sampler* pSampler = NULL; |
40 |
LSCPServer* pLSCPServer = NULL; |
41 |
pthread_t main_thread; |
42 |
pid_t main_pid; |
43 |
bool bPrintStatistics = false; |
44 |
bool profile = false; |
45 |
bool tune = true; |
46 |
unsigned long int lscp_addr; |
47 |
unsigned short int lscp_port; |
48 |
|
49 |
void parse_options(int argc, char **argv); |
50 |
void signal_handler(int signal); |
51 |
void kill_app(); |
52 |
|
53 |
int main(int argc, char **argv) { |
54 |
|
55 |
// initialize the stack trace mechanism with our binary file |
56 |
StackTraceInit(argv[0], -1); |
57 |
|
58 |
main_pid = getpid(); |
59 |
main_thread = pthread_self(); |
60 |
|
61 |
// setting signal handler for catching SIGINT (thus e.g. <CTRL><C>) |
62 |
signal(SIGINT, signal_handler); |
63 |
|
64 |
// register signal handler for all unusual signals |
65 |
// (we will print the stack trace and exit) |
66 |
struct sigaction sact; |
67 |
sigemptyset(&sact.sa_mask); |
68 |
sact.sa_flags = 0; |
69 |
sact.sa_handler = signal_handler; |
70 |
sigaction(SIGSEGV, &sact, NULL); |
71 |
sigaction(SIGBUS, &sact, NULL); |
72 |
sigaction(SIGILL, &sact, NULL); |
73 |
sigaction(SIGFPE, &sact, NULL); |
74 |
sigaction(SIGUSR1, &sact, NULL); |
75 |
sigaction(SIGUSR2, &sact, NULL); |
76 |
|
77 |
lscp_addr = htonl(LSCP_ADDR); |
78 |
lscp_port = htons(LSCP_PORT); |
79 |
|
80 |
// parse and assign command line options |
81 |
parse_options(argc, argv); |
82 |
|
83 |
dmsg(1,("LinuxSampler %s\n", VERSION)); |
84 |
dmsg(1,("Copyright (C) 2003,2004 by Benno Senoner and Christian Schoenebeck\n")); |
85 |
dmsg(1,("Copyright (C) 2005-2007 Christian Schoenebeck\n")); |
86 |
|
87 |
if (tune) { |
88 |
// detect and print system / CPU specific features |
89 |
Features::detect(); |
90 |
dmsg(1,("Detected features: %s\n", Features::featuresAsString().c_str())); |
91 |
// prevent slow denormal FPU modes |
92 |
Features::enableDenormalsAreZeroMode(); |
93 |
} |
94 |
|
95 |
// create LinuxSampler instance |
96 |
dmsg(1,("Creating Sampler...")); |
97 |
pSampler = new Sampler; |
98 |
dmsg(1,("OK\n")); |
99 |
|
100 |
dmsg(1,("Registered sampler engines: %s\n", EngineFactory::AvailableEngineTypesAsString().c_str())); |
101 |
dmsg(1,("Registered MIDI input drivers: %s\n", MidiInputDeviceFactory::AvailableDriversAsString().c_str())); |
102 |
dmsg(1,("Registered audio output drivers: %s\n", AudioOutputDeviceFactory::AvailableDriversAsString().c_str())); |
103 |
dmsg(1,("Registered instrument editors: %s\n", InstrumentEditorFactory::AvailableEditorsAsString().c_str())); |
104 |
|
105 |
// start LSCP network server |
106 |
struct in_addr addr; |
107 |
addr.s_addr = lscp_addr; |
108 |
dmsg(1,("Starting LSCP network server (%s:%d)...", inet_ntoa(addr), ntohs(lscp_port))); |
109 |
pLSCPServer = new LSCPServer(pSampler, lscp_addr, lscp_port); |
110 |
pLSCPServer->StartThread(); |
111 |
pLSCPServer->WaitUntilInitialized(); |
112 |
dmsg(1,("OK\n")); |
113 |
|
114 |
if (profile) |
115 |
{ |
116 |
dmsg(1,("Calibrating profiler...")); |
117 |
LinuxSampler::gig::Profiler::Calibrate(); |
118 |
LinuxSampler::gig::Profiler::Reset(); |
119 |
LinuxSampler::gig::Profiler::enable(); |
120 |
dmsg(1,("OK\n")); |
121 |
} |
122 |
|
123 |
printf("LinuxSampler initialization completed. :-)\n\n"); |
124 |
|
125 |
std::list<LSCPEvent::event_t> rtEvents; |
126 |
rtEvents.push_back(LSCPEvent::event_voice_count); |
127 |
rtEvents.push_back(LSCPEvent::event_stream_count); |
128 |
rtEvents.push_back(LSCPEvent::event_buffer_fill); |
129 |
rtEvents.push_back(LSCPEvent::event_total_voice_count); |
130 |
|
131 |
while (true) { |
132 |
if (bPrintStatistics) { |
133 |
const std::set<Engine*>& engines = EngineFactory::EngineInstances(); |
134 |
std::set<Engine*>::iterator itEngine = engines.begin(); |
135 |
for (int i = 0; itEngine != engines.end(); itEngine++, i++) { |
136 |
Engine* pEngine = *itEngine; |
137 |
printf("Engine %d) Voices: %3.3d (Max: %3.3d) Streams: %3.3d (Max: %3.3d)\n", i, |
138 |
pEngine->VoiceCount(), pEngine->VoiceCountMax(), |
139 |
pEngine->DiskStreamCount(), pEngine->DiskStreamCountMax() |
140 |
); |
141 |
fflush(stdout); |
142 |
} |
143 |
} |
144 |
|
145 |
sleep(1); |
146 |
if (profile) |
147 |
{ |
148 |
unsigned int samplingFreq = 48000; //FIXME: hardcoded for now |
149 |
unsigned int bv = LinuxSampler::gig::Profiler::GetBogoVoices(samplingFreq); |
150 |
if (bv != 0) |
151 |
{ |
152 |
printf(" BogoVoices: %i \r", bv); |
153 |
fflush(stdout); |
154 |
} |
155 |
} |
156 |
|
157 |
if (LSCPServer::EventSubscribers(rtEvents)) |
158 |
{ |
159 |
LSCPServer::LockRTNotify(); |
160 |
std::map<uint,SamplerChannel*> channels = pSampler->GetSamplerChannels(); |
161 |
std::map<uint,SamplerChannel*>::iterator iter = channels.begin(); |
162 |
for (; iter != channels.end(); iter++) { |
163 |
SamplerChannel* pSamplerChannel = iter->second; |
164 |
EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel(); |
165 |
if (!pEngineChannel) continue; |
166 |
Engine* pEngine = pEngineChannel->GetEngine(); |
167 |
if (!pEngine) continue; |
168 |
pSampler->fireVoiceCountChanged(iter->first, pEngineChannel->GetVoiceCount()); |
169 |
pSampler->fireStreamCountChanged(iter->first, pEngineChannel->GetDiskStreamCount()); |
170 |
pSampler->fireBufferFillChanged(iter->first, pEngine->DiskStreamBufferFillPercentage()); |
171 |
pSampler->fireTotalVoiceCountChanged(pSampler->GetVoiceCount()); |
172 |
} |
173 |
LSCPServer::UnlockRTNotify(); |
174 |
} |
175 |
|
176 |
} |
177 |
|
178 |
return EXIT_SUCCESS; |
179 |
} |
180 |
|
181 |
void signal_handler(int iSignal) { |
182 |
switch (iSignal) { |
183 |
case SIGINT: { |
184 |
if (pthread_equal(pthread_self(), main_thread)) { |
185 |
if (pLSCPServer) pLSCPServer->StopThread(); |
186 |
// the delete order here is important: the Sampler |
187 |
// destructor sends notifications to the lscpserver |
188 |
if (pSampler) delete pSampler; |
189 |
if (pLSCPServer) delete pLSCPServer; |
190 |
#if HAVE_SQLITE3 |
191 |
InstrumentsDb::Destroy(); |
192 |
#endif |
193 |
printf("LinuxSampler stopped due to SIGINT.\n"); |
194 |
exit(EXIT_SUCCESS); |
195 |
} |
196 |
return; |
197 |
} |
198 |
case SIGSEGV: |
199 |
std::cerr << ">>> FATAL ERROR: Segmentation fault (SIGSEGV) occured! <<<\n" << std::flush; |
200 |
break; |
201 |
case SIGBUS: |
202 |
std::cerr << ">>> FATAL ERROR: Access to undefined portion of a memory object (SIGBUS) occured! <<<\n" << std::flush; |
203 |
break; |
204 |
case SIGILL: |
205 |
std::cerr << ">>> FATAL ERROR: Illegal instruction (SIGILL) occured! <<<\n" << std::flush; |
206 |
break; |
207 |
case SIGFPE: |
208 |
std::cerr << ">>> FATAL ERROR: Erroneous arithmetic operation (SIGFPE) occured! <<<\n" << std::flush; |
209 |
break; |
210 |
case SIGUSR1: |
211 |
std::cerr << ">>> User defined signal 1 (SIGUSR1) received <<<\n" << std::flush; |
212 |
break; |
213 |
case SIGUSR2: |
214 |
std::cerr << ">>> User defined signal 2 (SIGUSR2) received <<<\n" << std::flush; |
215 |
break; |
216 |
default: { // this should never happen, as we register for the signals we want |
217 |
std::cerr << ">>> FATAL ERROR: Unknown signal received! <<<\n" << std::flush; |
218 |
break; |
219 |
} |
220 |
} |
221 |
signal(iSignal, SIG_DFL); // Reinstall default handler to prevent race conditions |
222 |
std::cerr << "Showing stack trace...\n" << std::flush; |
223 |
StackTrace(); |
224 |
sleep(2); |
225 |
std::cerr << "Killing LinuxSampler...\n" << std::flush; |
226 |
kill_app(); // Use abort() if we want to generate a core dump. |
227 |
} |
228 |
|
229 |
void kill_app() { |
230 |
kill(main_pid, SIGKILL); |
231 |
} |
232 |
|
233 |
void parse_options(int argc, char **argv) { |
234 |
int res; |
235 |
int option_index = 0; |
236 |
static struct option long_options[] = |
237 |
{ |
238 |
{"help",0,0,0}, |
239 |
{"version",0,0,0}, |
240 |
{"profile",0,0,0}, |
241 |
{"no-tune",0,0,0}, |
242 |
{"statistics",0,0,0}, |
243 |
{"instruments-db-location",1,0,0}, |
244 |
{"create-instruments-db",1,0,0}, |
245 |
{"lscp-addr",1,0,0}, |
246 |
{"lscp-port",1,0,0}, |
247 |
{0,0,0,0} |
248 |
}; |
249 |
|
250 |
while (true) { |
251 |
/* |
252 |
Stephane Letz : letz@grame.fr |
253 |
getopt_long_only does not exist on OSX : replaced by getopt_long for now. |
254 |
*/ |
255 |
res = getopt_long(argc, argv, "", long_options, &option_index); |
256 |
if(res == -1) break; |
257 |
if (res == 0) { |
258 |
switch(option_index) { |
259 |
case 0: // --help |
260 |
printf("usage: linuxsampler [OPTIONS]\n\n"); |
261 |
printf("--help prints this message\n"); |
262 |
printf("--version prints version information\n"); |
263 |
printf("--profile profile synthesis algorithms\n"); |
264 |
printf("--no-tune disable assembly optimization\n"); |
265 |
printf("--statistics periodically prints statistics\n"); |
266 |
printf("--lscp-addr set LSCP address (default: any)\n"); |
267 |
printf("--lscp-port set LSCP port (default: 8888)\n"); |
268 |
printf("--create-instruments-db creates an instruments DB\n"); |
269 |
printf("--instruments-db-location specifies the instruments DB file\n"); |
270 |
exit(EXIT_SUCCESS); |
271 |
break; |
272 |
case 1: // --version |
273 |
printf("LinuxSampler %s\n", VERSION); |
274 |
exit(EXIT_SUCCESS); |
275 |
break; |
276 |
case 2: // --profile |
277 |
profile = true; |
278 |
break; |
279 |
case 3: // --no-tune |
280 |
tune = false; |
281 |
break; |
282 |
case 4: // --statistics |
283 |
bPrintStatistics = true; |
284 |
break; |
285 |
case 5: // --instruments-db-location |
286 |
#if HAVE_SQLITE3 |
287 |
try { |
288 |
if (optarg) { |
289 |
struct stat statBuf; |
290 |
int res = stat(optarg, &statBuf); |
291 |
|
292 |
if (res) { |
293 |
std::stringstream ss; |
294 |
ss << "Failed to stat `" << optarg << "`: " << strerror(errno); |
295 |
throw Exception(ss.str()); |
296 |
} |
297 |
|
298 |
if (!S_ISREG(statBuf.st_mode)) { |
299 |
std::stringstream ss; |
300 |
ss << "`" << optarg << "` is not a regular file"; |
301 |
throw Exception(ss.str()); |
302 |
} |
303 |
|
304 |
InstrumentsDb::GetInstrumentsDb()->SetDbFile(String(optarg)); |
305 |
} |
306 |
} catch(Exception e) { |
307 |
std::cerr << "Could not open instruments DB file: " |
308 |
<< e.Message() << std::endl; |
309 |
exit(EXIT_FAILURE); |
310 |
} |
311 |
break; |
312 |
#else |
313 |
std::cerr << "LinuxSampler was not build with "; |
314 |
std::cerr << "instruments database support!\n"; |
315 |
exit(EXIT_FAILURE); |
316 |
break; |
317 |
#endif |
318 |
case 6: // --create-instruments-db |
319 |
#if HAVE_SQLITE3 |
320 |
try { |
321 |
if (optarg) { |
322 |
std::cout << "Creating instruments database..." << std::endl; |
323 |
InstrumentsDb::CreateInstrumentsDb(String(optarg)); |
324 |
InstrumentsDb::Destroy(); |
325 |
std::cout << "Done" << std::endl; |
326 |
} |
327 |
} catch(Exception e) { |
328 |
std::cerr << e.Message() << std::endl; |
329 |
exit(EXIT_FAILURE); |
330 |
return; |
331 |
} |
332 |
|
333 |
exit(EXIT_SUCCESS); |
334 |
return; |
335 |
#else |
336 |
std::cerr << "Failed to create the database. LinuxSampler was "; |
337 |
std::cerr << "not build with instruments database support!\n"; |
338 |
exit(EXIT_FAILURE); |
339 |
return; |
340 |
#endif |
341 |
case 7: // --lscp-addr |
342 |
struct in_addr addr; |
343 |
if (inet_aton(optarg, &addr) == 0) |
344 |
printf("WARNING: Failed to parse lscp-addr argument, ignoring!\n"); |
345 |
else |
346 |
lscp_addr = addr.s_addr; |
347 |
break; |
348 |
case 8: // --lscp-port |
349 |
long unsigned int port = 0; |
350 |
if ((sscanf(optarg, "%u", &port) != 1) || (port == 0) || (port > 65535)) |
351 |
printf("WARNING: Failed to parse lscp-port argument, ignoring!\n"); |
352 |
else |
353 |
lscp_port = htons(port); |
354 |
break; |
355 |
} |
356 |
} |
357 |
} |
358 |
} |